How do I store grain and beans for years?
This is the rare case where the extravagant internet claim is the true one — and it's cheap enough that there's no reason to do it halfway.
What actually works
About $1.50 per 5-gallon bucket. 20–30 years for wheat, rice and corn, backed by decades of institutional storage.
~$1.50 per 5-gallon bucket of grainDo this first, to anything that didn't come sealed. The absorbers handle insects too, but freezing is free insurance.
Free, if you own a freezerWet grain in a sealed low-oxygen bag is a botulism argument you do not want to have.
Brown rice and whole-grain flours go rancid regardless — fat oxidation is a different problem that oxygen absorbers don't solve.
Mylar is not rodent-proof. Food-grade bucket around it, every time.
Run the numbers
- The winter arithmetic → — free calculator, works offline.
Also searched as
long term food storage · mylar bags oxygen absorbers · store wheat 20 years · bulk food storage · buckets of rice · food storage shelf life